Hydraulic unloader



Sept. Z 14924. K. FoLscHE HYDRAULIC UNLOADER Filed Aug. 15 1921 2Sheets-Shut 1 Sept. 2 1924.

K. FoLscHE HYDRAULIC UNLOADER Filed Aug. 15 `1.921 2 Sheets-Shut 2Patented Sept. 2, 1924.

OFFICE.

KARL FLSCHE, F HALLE-ON-TI-IE-SAALE, GERMANY.

HYDRAULIC UNLOADER.

Application ledAugust 15,y 1921. Slerial No. 492,454.

To all lwhom t may concern:

Be it known that I, KARL FLscHE, residing at Halle-on-the Saale,Germany, have invented certain new and useful Improvements in HydraulicUnloaders (for which German Patent No. 289,124, dated February, 20,1914, has been granted and for which application' for patent in Germanyhas been filed July 21, 1914), of which the following in aspecification.

This invention relates in general to a device for unloading loosematerial intbulk from railway cars by means of a water jet. It relatesmore particularly to a device of the kind that enables the nozzle fromwhich the water is ejected, and which must be arranged to be movedrelatively to the cars in a vertical and a horizontal direction, to bemoved in such a manner that in all places intol which the nozzle isshifted the most favorable effect of the water jet on the material to bedischarged is obtained. In accordance with my invention all themotionsexecuted by the nozzle are imparted to it from an operators positioninsuch a way that the inclination of the water jet to the horizontalalways remains the samefin all places Ainto which the nozzle is brought.

A constructional form of the invention is shown in the drawing. f

Fig. 1 is a side elevation of my novel device, partly in verticalsection,

Fig. 2 is a correspondingv plan view, and

Fig. 3 is a sectional plan view of Fig. 1 on the line 3 3.

In the form illustrated my invention is adapted more particularly `.forunloading sugar beet from railway cars in sugar mills. The sugar beetare brought in open trucks 1, 1 shown diagrammatically in the drawing,to the sugar mill. The rails at the sugar mill are situated adjacent toa trough or flume 2 and the cars are rolled into positions beneath theunloading device, which is similar in appearance to a revolving,

crane. The portion of the device that acts on the material to beunloaded consists of a nozzle 3 capable of being moved in the spaceabove the vcar and'through which a powerful jet 4of water may bespurted. The nozzle receives water under pressure which is preferablysupplied from a centrifugal pump 4 in the interior of a tower-likestructure 5. The suction vpipe 6 takes 'in water from any suitablesupply (not shown) pipe 10 is closed 4at one end and has a stuff.

ing box 11 at its other end throughwhich a Y horizontal telescopic tube12 may be slipped in and out. The outer end of the tube 12 is connectedby means of a flange 13 to a vertical tube 14. i

From the vertical tube 14 the water under pressure passes through slots15 into a vertical pipe 16 to the lower end of which the nozzle 3 isfixed. The innerpipe 16 and the externalk pipe 14 have a common' axis`and the inner pipe 16 can be turned about the said axis and moved inthe pipe 14 in telescope fashion in the direction longitudinally of thesaid axis. The pipes'9, 10, 12, 14, 16 with the nozzle 3 and all thedevices for shifting the pipes rest upon a frame which is preferablymadeof two ironfgirders 17, 17 which extend 4parallel to the pipes-10,12 and are joined to each in any suitable manner-by cross-ties. Theframeis borne by rolls 18 adapted to 'travel round on a Acircular rail`19 mounted' on the tower' 5.

20 is an electromotor for turning the frame 17, and all the parts fixedto it, about the axis of the tower. Through any suitable gear, such as a"worm and lworml wheel enclosed in a casing 21 and bevel wheels 22, themotor 20 drives a pinion 23v which is in mesh with a circle of teeth 24fixed on the tower 5. When the motor 'is started the vframe 17 and allthe parts fixed to it including the nozzle 3 are rotated around the axisof the tower.' I

The operators cage 25 is also'mounted on the frame 17 so that it is alsocarried round with it. Switching devices for the electromotor thatoperate the frameJ 17 and the various movable parts are arranged at theoperators position in the well known man'- ner adopted in cranes. A stopvalve 26, by which the operator can regulate. the flow`of water to thenozzle 3, can also be worked from the operators position. y

The outer end of the pipev 12 together with the tube 14 and the devicesassociated therewith rests upon a small truck 27 arr-angled,-

like a crane traveller and adapted totravel on rails 28,- 28. The truck`27 is driven by an electromotor 29 which, Vby suitable inter-l mediategear, rotates two spur wheels 30, 3() that engagev with racks 31, 31. Ashas been already mentioned thefelectromotor 29 is controlled by devicesarranged at the operators position By causing the truck 27 to travelalong the rails 28 the pipe 12 is pushed into the pipe or pulled out ofit.

The tube 16 that carries the ynozzle 3 is cut olf from communicationwith the pipe 14 by a stuffing box 32 in which the tube 16 can slide androtate. At its upper end the tube 1G has an extension 33 which passesthrough a stuffing box 84 at the top end of the pipe 14. By this meansthe tube 16 is securely guided in thc pipe 14. Mounted 'at the top ofthe rod S3 is a cross-piece 35 and another-cross-piecc is lined to thelower end of the tube 16. These cross-pieces are interconnected by fourrods one pair B7, 37 of which is smooth while the other pair 38, 38 havescrew threads at their upper ends and are provided with nuts 39 at theirupper ends. The nuts 39, whose vertical position relative to the frame17 is fixed, are shaped at their peripheries in the form of worm wheelswhich engage with worms 40, 40 that can be rotated through speedchanginggear by the electroinotor 41. The motor is also controlled from theoperators position 25. 'Vhen it is started the tube 16 is pushed into orpulled out of the pipe 14 and the height of the nozzle 3 above the car 1is thus decreased or increased according to the direction of rotation ofthe said motor 41. The tube 16 in the pipe 14 is rotated by a smallelectromotor 42 and carries the nozzle 3 around with it. Theelectromotor 42 may be arranged to act through the medium of gear wheelson a worm 43 which engages with the worm wheel 44 keyed to the lower endof the pipe 16. The motor 42 is also controlled from the operators stand25.

The motions of the nozzle 3 driven by the electromotors 20, 29, 41 and42 may take place one at. a time or all together without mutuallyinterfering. It will be, obvious that during all of these motions of thenozzle 3 (which are imparted to it for the purpose of bringing it intothe proper position relatively t-o the material to be unloaded from thecar 1) the angle which the jet issuing from the ynozzle 3 forms with thehorizontal is never changed. By this means it is possible to maintainthe most favorable eliect of the jet in all positions of the nozzle.

The Inode of operation of my novel device is as follows:

The loaded car 1 may be moved to the place where they are to be unloadedby any known means. In the. example shown in Fig. 2 it is assume-d thata shunting windlass 45 is provided for this purpose. This windlassdrives an endless rope 46 to which the car may be temporarily hitched byany suitable kind of gripping device or the like. As this kind of ropedriving plant is well known a more detailed description of the same isunnecessary.

l/Vhen a car has beenl hauled into position beneath the frame 17, 17"rit is unhitched and the side doors l of the truck are opened. Then thenozzle 3 is moved into the proper position by means of the motorscontrolled by switching devices at the operators position and, the pump4 having beenY started, a powerful water jet is directed against thesugar beet (or the like) near the opcndoor. The sugar beet will thenslip out of the car and will be thrown bythe water into the channel orlaunder 2 and transported by the impelling water to the placeswhere'they are needed. As the unloading opera-tion proceeds the operatorat his stand 25 shiftsthe nozzle 3.

Since, in all positions into which the noz zle is shifted, theinclinationk of the water jet is maintained at the angle which has beenfound by experience to be the most favorable for the kind of materialdealt with, the work of unloading will be considerably expedited. y

Vhen a car is completely unloaded the pump is stopped and a new car ishauled into position by means of the windlass 45' and the e rope 46.

I claim:

1. In a hydraulic unloadingy device a nozzle inclined to the horizontal,means to raise and lower the nozzle and means to bodily move said nozzlein a plane without 'changn ing its angular relation to the horizont-al.

2. In a hydraulicl unloading device an inclined nozzle, means to raiseand lower said nozzle, means to bodily move the nozzle in a plane andmeanstotraverse the nozzle, all of said means operative without changingthe inclination of the. nozzle.

3. In a hydraulic unloading device, lan in clined nozzle, mea-ns tovertically raise and lower said nozzle, means to bodily move the nozzlein a plane, means to traverse the nozzle and means to rotate the nozzleon a vertical aXis. i

4. In a hydraulic unloading device a vertical supply pipe, a crane,mea-ns to swing said crane about said pipe, a. substantially horizontaltelescoping continuation of sai-d pipe carried by sai-'d crane androtatable With respect to said pipe, a vertical extension on the end ofsaid continuation and a telescoping nozzle member in said verticalextension.

5. In a hydraulic unloading device, a tower, a. vertical Water supply`pipe therein, a cantilever crane mounted on said tower, mechanism torotateA said craneabfout said pipe as a centre, a continuation of saidpipe supported along said crane, a vertical exten sion of saidcontinuation at the end of said crane, a telescoping nozzle member insaid extension, mechanism to raise and lower said nozzle member andindependent mechanism to rotate said nozzle member.

6. In a hydraulic unloading device, a. tower, a vertical Water supplypipe therein, a cantilever crane mounted on said tower, mechanism torotate said crane about said pipe a horizontal telescopic continuationof said pipe mounted on said crane, a truck. on said crane supportingthe telescopingvend of said continuation, mechanism to traverse saidtruck and extension along the crane, a depending extension of saidcontinuation, a nozzle member telescoping in said extension andmechanism to rotate said member ,and mechanism to telescope the member.i

e 7. In a hydraulic unloading device, an inclined nozzle, mechanism tomove said noz zle in threedirections substantially at right angles Whilemaintaining the inclination of the nozzle to the horizontal, constantand means to rotate the nozzle on a verticalaXis.

In testimony-whereof I have signed this specification in the presence oftwo Witnesses.

KARL FLSCHE.

